65720
domain: N
Appears in sequences
- Fifth column (m=4) of (1,6)-Pascal triangle A096956.at n=29A096958
- Numerators b(n) of Pythagorean approximations b(n)/a(n) to Pi.at n=5A195545
- Triangle read by rows: T(n,k) is the number of ascent sequences of length n with maximal element k-1.at n=49A218577
- Triangle read by rows: T(n,k) = 4*T(n-1,k-1) + T(n,k-1) with T(2*m,0) = 0 and T(2*m+1,0) = 5^m.at n=42A292466